diff --git a/Kernel_d/include/CGAL/Kernel_d/function_objectsHd.h b/Kernel_d/include/CGAL/Kernel_d/function_objectsHd.h
index 0a5d8baa050..8d634d3d607 100644
--- a/Kernel_d/include/CGAL/Kernel_d/function_objectsHd.h
+++ b/Kernel_d/include/CGAL/Kernel_d/function_objectsHd.h
@@ -205,7 +205,7 @@ template <class ForwardIterator, class OutputIterator>
 OutputIterator operator()(ForwardIterator first, ForwardIterator last, 
   const Point_d& p, OutputIterator result)
 { TUPLE_DIM_CHECK(first,last,Barycentric_coordinates_d);
-  int d = p.dimension();
+  CGAL_assertion_code( int d = p.dimension(); )
   typename R::Affine_rank_d affine_rank;
   CGAL_assertion(affine_rank(first,last)==d);
   typename LA::Matrix M(first,last);